3 papers
astro-ph.IM2026
The Pollux European instrument concept for HWO: a high-resolution spectrograph and spectropolarimeter from the far-UV to the near-IR
Coralie Neiner, Jean-Claude Bouret, Luca Fossati +4
Pollux is a high-resolution spectrograph and spectropolarimeter working from 100 nm to 1.8 microns proposed for HWO by a European consortium. Pollux will allow us to study stellar…
astro-ph.GA2025
Unveiling supermassive black hole binaries with FUV-to-NIR spectropolarimetry
Frédéric Marin, Julie Biedermann, Thibault Barnouin
In this proceedings, we review the importance and complexity of detecting and characterizing supermassive binary black holes using conventional techniques (spectroscopy, timing, im…
astro-ph.GA2025
Polarimetric insights into a potential binary supermassive black hole system in Mrk 231
J. Biedermann, F. Marin, T. Barnouin
Markarian 231 (Mrk 231) is one of the brightest ultraluminous infrared galaxies (ULIRGs) known to date. It displays a unique optical-UV spectrum, characterized by a strong and perp…